[FIX] account: add oldname on account_invoice uom field for the migration

addons/account/models/account_invoice.py

@@ -1015,7 +1015,7 @@ class AccountInvoiceLine(models.Model):
     invoice_id = fields.Many2one('account.invoice', string='Invoice Reference',
         ondelete='cascade', index=True)
     uom_id = fields.Many2one('product.uom', string='Unit of Measure',
-        ondelete='set null', index=True)
+        ondelete='set null', index=True, oldname='uos_id')
     product_id = fields.Many2one('product.product', string='Product',
         ondelete='restrict', index=True)
     account_id = fields.Many2one('account.account', string='Account',